/* 
 *  Copyright 2012 CodeMagi, Inc.
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.codemagi.servlets.content.model;

import com.codemagi.login.model.IUser;
import com.codemagi.servlets.model.Securable;
import java.io.Serializable;
import java.util.*;

public class DisplayNavPage extends NavPageContent implements Serializable, Comparable, Securable {
    
    //private Integer parentId;
    private ArrayList subPages = new ArrayList();

    //GETTERS AND SETTERS ---------------------------------------------------
    /*
    public void setParentId(Integer newValue) {
	parentId = newValue;
    }

    public Integer getParentId() {
	return parentId;
    }
    */

    public void setSubPages(ArrayList newValue) {
	if (newValue != null) {
	    subPages = newValue;
	    setChildren(newValue);
	}
    }

    public ArrayList getSubPages() {
	return subPages;
    }


    //SPECIAL GETTERS AND SETTERS ------------------------------------------

    public boolean hasChildren() {
        return !subPages.isEmpty();
    }

    /**
     * Returns true if this nav page has at least one visible child
     */
    public boolean hasVisibleChildren() {
        if ( subPages.isEmpty() ) return false;

	Iterator i     = subPages.iterator();
	while (i.hasNext()) {
	    NavPageContent child = (NavPageContent)i.next();

	    if (child.display()) return true;
	}

	return false;
    }

    /**
     * Returns true if this nav page has at least one visible 
     * child that the passed user is allowed to view
     */
    public boolean hasVisibleChildren(IUser user) {
        if ( subPages.isEmpty() ) return false;

	Iterator i     = subPages.iterator();
	while (i.hasNext()) {
	    NavPageContent child = (NavPageContent)i.next();

	    if (!child.hasUser(user)) continue;

	    if (child.display()) return true;
	}

	return false;
    }

    public List<NavPageContent> getSiblings() {
	DisplayNavPage parent = (DisplayNavPage)getParent();

        if (parent == null || !(parent instanceof com.codemagi.servlets.content.model.NavPageContent)) return new ArrayList();

        return parent.getSubPages();
    }

    public boolean isRootPage() {
	return (getParent() == null);
    }


}
